Inventor
ANNAMALAI KARUPPIAH
US13 patents
⚠️ This page may combine multiple inventors who share the name “ANNAMALAI KARUPPIAH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CENTRAK INC
9 patentsUS10126407B1Nov 13, 2018
Methods and systems for synchronized ultrasonic real time location
CENTRAK INC10 citations92
US9622030B1Apr 11, 2017
Methods and systems for synchronized ultrasonic real time location
CENTRAK INC7 citations84
US8907764B1Dec 9, 2014
Methods and systems for synchronized ultrasonic real time location
CENTRAK INC7 citations84
US9341700B2May 17, 2016
System and method for multimode Wi-Fi based RTLS
CENTRAK INC15 citations83
US10365347B1Jul 30, 2019
Methods and systems for synchronized ultrasonic real time location
CENTRAK INC2 citations73
US11044587B2Jun 22, 2021
Real-time location system, device and methods
CENTRAK INC0 citations61
US12010587B2Jun 11, 2024
Base station synchronization in wireless location systems
CENTRAK INC0 citations51
US10609526B2Mar 31, 2020
Real-time location system, device and methods
CENTRAK INC0 citations51
US10511930B2Dec 17, 2019
Real-time location smart speaker notification system
CENTRAK INC0 citations40
AMIR ISRAEL
4 patentsUS8139945B1Mar 20, 2012
Methods and systems for synchronized infrared real time location
AMIR ISRAEL144 citations98
US8604909B1Dec 10, 2013
Methods and systems for synchronized ultrasonic real time location
AMIR ISRAEL35 citations97
US9231699B1Jan 5, 2016
Methods and systems for synchronized infrared real time location
AMIR ISRAEL6 citations83
US7378964B1May 27, 2008
Very low power active RFID receiver
AMIR ISRAEL18 citations83